Home / 79,083.42-118,625.13-31,720.02

Finding the Fourth Proportional to 79,083.42, 118,625.13 and 31,720.02

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Solution

The fourth proportional to 79,083.42, 118,625.13 and 31,720.02 is: 47,580.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,083.42 : 118,625.13 = 31,720.02 : x
  2. Step 2: Convert to fraction form
    79,083.42/118,625.13 = 31,720.02/x
  3. Step 3: Cross multiply
    79,083.42x = 118,625.13 × 31,720.02
  4. Step 4: Simplify right side
    79,083.42x = 3,762,791,496.10
  5. Step 5: Solve for x
    x = 3,762,791,496.10/79,083.42
  6. Step 6: Final answer
    x = 47,580.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.